public static void WriteLine(string message, [CallerFilePath] string sourceFilePath = "", [CallerMemberName] string memberName = "", [CallerLineNumber] int sourceLineNum = 0)
{
string messageFormatted = string.Format("{0}.{1}({2}):{3}", System.IO.Path.GetFileNameWithoutExtension(sourceFilePath), memberName, sourceLineNum, message);
Trace.WriteLine(messageFormatted);
if (logFile != null)
#if WINDOWS_UWP
{ logFile.WriteString(messageFormatted + Environment.NewLine); }
#else
{ logFile.WriteLine(messageFormatted); }
#endif
}